package com.wt.order.common;

import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

import java.sql.SQLIntegrityConstraintViolationException;

/**
 * @author 吴涛
 * @date 2022/5/9 20:45
 * @qq 337144203
 * 全局异常处理器，来捕获一些异常
 */
@ControllerAdvice(annotations = {RestController.class, Controller.class})//拦截加了RestController注解的controller
@ResponseBody
@Slf4j
public class GlobalExceptionHandler {

    @ExceptionHandler(SQLIntegrityConstraintViolationException.class)
    // Duplicate entry 'wutao' for key 'idx_username'
    public R<String> exceptionHandler(SQLIntegrityConstraintViolationException ex){
        log.error(ex.getMessage());
        if (ex.getMessage().contains("Duplicate entry")){
            String[] split = ex.getMessage().split(" ");//进行切割
           String msg = split[2] +"已存在";
            return R.error(msg);
        }
        return R.error("未知错误");

    }

    /**
     * 自己定义的异常
     * @param ex
     * @return
     */
    @ExceptionHandler(CustomException.class)
    public R<String> exceptionHandler(CustomException ex) {
        log.error(ex.getMessage());
        return R.error(ex.getMessage());
    }



}
